Modbus help

MODBUS is an industrial master-slave protocol for setting and getting data in industrial devices such as PLCs, I/O converter units and so on. Click here for a generic description about the modbus IOServers. If you want to try it out for yourself, click here to go to the Modbus/TCP demo.

CDP Studio provides pre-made Modbus/RTU, Modbus/TCP, and Modbus/UDP Master and Slave models that can be added to your project. When communicating with bus-couplers that have physical modules, please use the more specific ModbusIO models such as B&R, Weidmueller, Beckhoff, Wago, etc. This is to make sure the IOServer configuration is set up correctly in regards to how the data packing and ordering of the various modules are handled.

For generic modbus configuration, such as interchanging data with a PLC, the generic ModbusIO.ModbusMasterTCP,ModbusIO.ModbusMasterUDP and ModbusIO.ModbusMasterRTU could be used when the CDP Studio application is the master. Applications that act as a Modbus Slave can use ModbusIO.ModbusSlaveTCP, ModbusIO.ModbusSlaveUDP and ModbusIO.ModbusSlaveRTU.

• Configuration Examples
• Configuration Manual